Dave Howell
9/5/2006 11:48:00 PM
On Aug 31, 2006, at 14:10, Ray(:bies, :mundo) wrote:
> Hi, I'm looking for a way to read Truetype & PS Type 1 font metrics so
> that I can generate a list of installed fonts by name in a Ruby script.
> I have been searching the Internet for some tips on how-to with no luck
> so far. Can anyone point me in the right direction?
Hmm. First, you should figure out if your operating system offers a way
to do that. For example, on the Macintosh, fonts are almost certainly
in three different locations (/System/Library/Font, /Library/Fonts,
~/Library/Fonts) and could easily be in five or more (/System
Folder/Font, /Network/Library/Fonts). Using RubyCocoa to make a call to
the OS's font manager delivers a list of installed fonts without having
to try to track them all down. Dunno what the Win equivalent would be.
Second, if what you want are font names, you don't need any special
tool for PostScript fonts. .pfb files start with a text header that
contains the name of the font. Just read the first 1k or so of the file
into memory, and grep for the line with the info you want. In the case
of Caflisch Script Bold, your choices are:
/FullName (Caflisch Script Bold) readonly def
/FamilyName (Caflisch Script) readonly def
/FontName /CaflischScript-Bold def
You'll have to figure out which of those you want. All three are
required in a PostScript font.
TrueType fonts are more likely to be all-binary, and have to be run
through a translator of some kind. "ttf2afm" is a good tool for this;
it's available on a lot of platforms. The output will be very similar
to the above:
FullName Caflisch Script Bold
FamilyName Caflisch Script
FontName CaflischScript-Bold